I mistakenly implied that those reps. have to be restricted to those ranges. One may exceed those without possible repercussion. However, it is the jumping in to weight lifting after a long lay off using heavier weights and lower reps that generally gets people in trouble.
Along those lines, training at 90% of a 25 rep max could potentially cause tendon damage in those unaccustomed to that stress due to the stress on the tissues that could potentially cause minute tears (the larger detrimental kinds, not the microscopic adaptation kinds)
Once again, all I am trying to say is that you need to take it easy and try to slowly allow your body to adapt to a new degree of tendon stress.